Aldon Smith Portrait Session on June 21, 2013 in New York City. (Photo by Mike Coppola/Getty Images for Aldon Smith)

Aldon Smith Portrait Session on June 21, 2013 in New York City. (Photo by Mike Coppola/Getty Images for Aldon Smith)

Heavyweight fighter Daniel Comier (L) works out with San Francisco 49ers defensive end Aldon Smith (R) at AKA San Jose on February 15, 2013 in San Jose, California. (Photo by Thearon W. Henderson/Getty Images)

Aldon Smith #99 of the San Francisco 49ers celebrates after recovering a fumble in the first quarter against the Seattle Seahawks during the 2014 NFC Championship at CenturyLink Field on January 19, 2014 in Seattle, Washington. (Photo by Jonathan Ferrey/Getty Images)

Aldon Smith, Pepsi Rookie of the Year finalist attends NFL Honors And Pepsi Rookie Of The Year at Murat Theatre on February 4, 2012 in Indianapolis, Indiana. (Photo by Mike Coppola/Getty Images for Pepsi)

Linebacker Aldon Smith #99 of the San Francisco 49ers rushes the Seattle Seahawks in the first quarter on October 18, 2012 at Candlestick Park in San Francisco, California. The 49ers won 13-6. (Photo by Brian Bahr/Getty Images)

Aldon Smith Portrait Session on June 21, 2013 in New York City. (Photo by Mike Coppola/Getty Images for Aldon Smith)

Aldon Smith speaks with the media during a media availability session for Super Bowl XLVII at the New Orleans Marriot on January 28, 2013 in New Orleans, Louisiana. (Photo by Stacy Revere/Getty Images)

Aldon Smith #99 of the San Francisco 49ers warms up before their game against the Miami Dolphins at Candlestick Park on December 9, 2012 in San Francisco, California. (Photo by Ezra Shaw/Getty Images)